CVE-2021-27104 Accellion FTA OS Command Injection

Exploited in the wild Critical 9.8 Published Updated

Attackers can execute arbitrary OS commands via crafted POST requests to admin endpoints in Accellion FTA.

Exploited in the wild
Since 3 Nov 2021
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-27104?

CVE-2021-27104 is a critical command injection vulnerability in n/a, published on 16 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Accellion FTA 9_12_370 and earlier is affected by OS command execution via a crafted POST request to various admin endpoints. The fixed version is FTA_9_12_380 and later.

Weakness: CWE-78

Which versions are affected by CVE-2021-27104?

It affects 1 product.

Products include Accellion Fta.

How do I fix CVE-2021-27104?

No fix has been published for CVE-2021-27104 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 17 Nov 2021.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-27104 being exploited?

Yes. Attackers have exploited CVE-2021-27104 in the wild since at least 3 Nov 2021, including in ransomware campaigns.

Sources

Also known as GHSA-54w2-m25f-gmqp.

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